Scepter® PVC Molded Junction Boxes Technical Catalog

Scepter
PVC Molded
Junction Boxes
®
Technical Catalog
TM
ELECTRICAL SYSTEMS
PVC MOLDED JUNCTION BOXES
• 4" to 12"
• Fully Certified: NEMA, UL & CSA
We build tough products for tough environments ®
2
The EASIEST Junction
Box you’ll EVER use
The frustrations are gone – no more worries about
positioning a gasket or over-tightening a cover
screw, and no more loose parts to misplace
before installation. We’ve added features to make
the installation of a junction box faster and easier;
whether locating and aligning conduit entry
holes, easily mounting the box to a wall or pole
or installing a cover with only one hand, you will
appreciate the new design features.
Discover the many labor-saving
features of the NEW Scepter® JBoxTM.
1
FEATURES & BENEFITS ................................................4
PRODUCT DIMENSIONS .............................................6
SHORT FORM SPECIFICATIONS ...................................7
APPLICATIONS/USE....................................................7
PHYSICAL PROPERTIES............................................8-10
Sunlight Resistance & Weathering
Maximum Temperature Range
Recommended Operating Temperature
Enclosure Temperature Rise
Flame Resistance
Impact Resistance
EMI/RFI Shielding
Relative Thermal Index
Chemical Resistance
ENCLOSURE RATINGS .........................................11-13
NEMA Ratings
IP Ratings
INSTALLATION .....................................................14-18
Mounting
Pole Mounting
Conduit Connections
Custom Cutting
Drilling & Cutting
Custom Colors
Painting Recommendations
Drainage Holes
Grid Lines
Back Panel & Din Rail Mounting
Security & Restricting Access
Grounding & Bonding
2
TM
BUILT TOUGH TO LAST
The NEW Scepter® JBoxTM is ideally suited for indoor
and outdoor use and made to perform in the most
demanding environments. Made of PVC it is extremely
durable and resistant to impact in a wide range of
temperatures and not adversely affected by water and
chemicals. Built for corrosive environments, the NEW
Scepter® JBoxTM is entirely non-metallic, eliminating
corrosion concerns with screws and other metal parts.
A true labor saver, the “close-by-hand – tool-assist to
open” fasteners are functional and resilient as they are
made of a performance grade thermoplastic polyester
resin, Valox. The impact modified and UV stabilized
Valox material provides exceptional mechanical and
thermal properties along with excellent chemical
resistance.
NEMA Rated
The patented gasket and fastener system provides a
reliable water-tight seal that meets the required NEMA
rating – each and every time. The gasket is specifically
formulated to be resistant to oils (NEMA 12 & 13). The
cover/box design ensures a dependable seal while
protecting the gasket from physical damage, external
environmental forces and water submersion (NEMA 6P).
1, 2, 3R, 4, 4X, 6, 6P, 12, 13
Listed
CSA C22.2 No. 40
CSA C22.2 No. 85
UL 50 / CSA C22.2 No. 94.1
UL 50E / CSA C22.2 No. 94.2
3
THE NEXT GENERATION JUNCTION BOX
FEATURES & BENEFITS
FASTENERS
GRIDLINES
• Close by hand – tool assist to open
• Easy reference for drilling knockouts
• 100% non-metallic – corrosion resistant material
• Makes conduit alignment a snap
• No loose hardware for easy installation
• Indicates a “drill zone”
LOCK-OUT OPTION
MOUNTING FEET
• Available on sizes 6" to 12"
• Molded – no loose parts to assemble
• Use a tie-wrap, bolt or padlock for added security
• Located on corners out of the way of conduit
connections
INTEGRATED GASKET
• Flush with the back of the box for close surface
mounting
• Injection molded gasket permanently fixed to the
cover – no installation required
• Integrated design of mounting feet offers improved
strength
• Proprietary gasket material creates a 6P rated
enclosure
CONDUCTORS
FLAT COVER
• Suitable for use with 90ºC Rated Conductors
• No ribs – offers a flat, smooth surface for mounting of
devices or labels
POLE MOUNTING KIT
• No engravings
• One kit fits 4" to 12" new Scepter JBoxes (PMK4-12)
• Supplied as a complete kit
BACK PANEL
• Works with wood, concrete, steel and composite poles
• Designed to fit sizes 8" and 12"
• Installs on round, square & octagonal poles up to 15"
diameter
• Made of 14 gauge carbon steel
• White epoxy powder-coated finish
• Easy to cut and drill to mount devices
4
TM
The FASTEST box
to INSTALL
The completely redesigned NEW Scepter® JBoxTM
has added features to make this the fastest box to
use – no matter the situation.
ADVANTAGES
ZERO FOOTPRINT
• Design allows for installation in corners and
immediately adjacent to other products
• Easy access to all mounting feet and fasteners
PERFORMANCE RATINGS
Max. Temp. Range
Rec. Operating Temp.
INSTALLING OVERHEAD
UV and Water Exposure
• Integral fasteners allow for easy overhead positioning
and securing
Flame & Smoke
MOUNTING IN A COVER
NEMA
• Pilot lights, control switches and other devices are
easily mounted
Industrial Control Panels
• Cover is free and clear of supporting ribs, and has a
uniform thickness
ADDED SECURITY
• 6" and larger, feature a lock-out option
• Tie-wrap, tamper resistant bolt or padlock will restrict
access to the box
MORE INTERIOR VOLUME
• Increased space from wire pulling and for ease of
bend radius
• Increased cubic inch volume allows for more flexibility
5
122ºF (50ºC)
-40ºF to 122ºF (-40ºC to 50ºC)
UL 746C
UL 94V-O
(UL94 Vertical Flame Test)
1,2,3R,4,4X,6,6P,12,13
UL 508A approved
THE NEXT GENERATION JUNCTION BOX
PRODUCT DIMENSIONS
Lock DIN Rail
Out & Back
Option Panel
L1
W1
L2
W2
H
M1
M2
G1
G2
J1
J2
D
K
Size
inches
Part
Product
Number Code
4x4x2
JBX442 277000
–
–
4.97 3.93 3.48 3.48 2.90 4.48 3.44 2.41 1.09 1.72 1.09 0.51 0.24
4x4x4
JBX444 277001
–
–
4.90 3.86 3.48 3.48 4.89 4.41 3.37 2.22 2.97 1.59 2.97 0.59 0.24
5x5x2
JBX552 277002
–
–
5.97 4.93 4.55 4.55 2.90 5.48 4.44 3.41 1.09 2.69 1.09 0.51 0.24
6x3x4
JBX634 277003
✓
–
3.90 5.86 2.48 5.48 4.89 3.41 5.37 1.22 2.72 3.42 2.72 0.59 0.28
6x6x4
JBX664 277004
✓
–
7.58 7.58 5.86 7.20 4.90 6.90 6.90 4.47 2.47 4.47 2.47 0.59 0.28
6x6x6
JBX666 277005
✓
–
7.51 7.51 5.79 7.13 6.90 6.83 6.83 4.22 4.47 4.22 4.47 0.72 0.28
Size
inches
Part
Number
Product
Code
8x8x4
JBX884
277006
✓
✓
9.58 9.58 7.86 9.20 4.90 8.90 8.90 6.47 1.97 8.25 6.26 3.94 3.13 0.59 0.28
8x8x7
JBX887
277007
✓
✓
9.47 9.47 7.76 9.10 7.90 8.90 8.90 6.22 4.65 8.25 6.26 3.94 3.13 0.75 0.28
12x12x4 JBX12124 277008
✓
✓
13.58 12.24 11.74 11.74 4.90 12.90 11.56 9.28 2.03 10.26 10.25 3.94 3.13 0.56 0.28
12x12x6 JBX12126 277009
✓
✓
13.58 12.24 11.74 11.74 6.90 12.90 11.56 9.03 3.78 10.26 10.25 3.94 3.13 0.67 0.28
12x12x8 JBX12128 277010
✓
✓
13.58 12.24 11.74 11.74 8.90 12.90 11.56 8.81 5.64 10.26 10.25 3.94 3.13 0.76 0.28
inches
Lock DIN Rail
Out & Back
Option Panel
L1
W1
L2
W2
H
M1
M2
G1 G2
N1
N2
P1
P2
D
K
inches
L1
M1
W1
M2
W1
M2
H
K
H
L2
G1
W1
M2
W2
M1 L1
D
G1
G2
N1
N1
P1
D
K
W2
J1
P2
L2
N2
N2
G2
N1
M1 L1
N1
P1
K
W2
P2
L2
P2 N2
J2
D G2
H
N2
G1
JBX442 - JBX666
Part
Number
Product
Code
8x8
BP88CSW
077861
12x12
BP1212CSW
W
H
A
B
JBX12124 - JBX12128
C
inches
BACK PANELS
BP88CSW - BP1212CSW
H
B
Size
inches
JBX884 - JBX887
6.88 8.75 6.26 8.25 0.25
C
077865 10.88 10.75 10.26 10.25 0.25
6
A
W
TM
SHORT FORM SPECIFICATIONS
Junction boxes shall be acceptable for indoor and
“close by hand, tool assist to open” fasteners. To
outdoor use and manufactured of PVC in a gray
aid in the alignment and proper positioning of
color analogous to Rigid PVC conduit and fittings.
conduit connections the box/enclosure shall have
The junction box and its fasteners, hinges or
embossed gridlines on the sidewalls. The mounting
components shall be entirely non-metallic. Boxes
shall be NEMA rated 1, 2, 3R, 4, 4X, 6, 6P, 12, 13
and certified to bi-national standard UL50/50E CSA No.94.1/94.2 by a Nationally Recognized
Testing Laboratory (i.e. UL or CSA).
The cover/box seal shall be dual-molded so as to
be a permanent part of the cover and the cover
secured to the box using non-metallic quarter-turn
feet shall be a permanent molded feature of the box
and not extend beyond the periphery of the
box/enclosure. On boxes/enclosures of nominal
size 8”X8” and larger, back-panel / DIN rail
mounting and pad-lock provisions shall be
incorporated into the product.
Acceptable manufacturer: IPEX (Scepter JBox Series)
APPLICATION / USE
WHY SELECT PVC FOR AN ENCLOSURE?
APPLICATIONS
The Scepter JBoxes are ideal for use wherever PVC
Non-metallic PVC boxes/enclosures are lightweight,
conduit and fittings are employed. Scepter JBoxes have
easily installed and modified, ideal for outdoor
no metallic parts or hardware to be of concern making
exposed to weather applications they are corrosion
these boxes ideal for indoor, outdoor, wet locations
resistant and offer a high degree of resistance to
and challenging corrosive environments. They are well
chemical elements. PVC is a cost effective option for
suited for a wide range of applications such as
enclosures with a proven long life in indoor and
corrosive environments, agricultural, wash down,
outdoor applications. PVC does not support
water and waste-water treatment facilities, marine and
combustion and is self-extinguishing. See all 10
car washes.
reasons in the Scepter PVC Conduit Brochure found
at www.ipexamerica.com.
7
THE NEXT GENERATION JUNCTION BOX
for the enclosure and the products enclosed. The nature
of the materials used to manufacture non-metallic
enclosures provide a range of operating use
temperatures but what is most important is the
temperature rating of the products contained within. For
example, if the control equipment within an enclosure
has a maximum operating temperature of 120°F, having
a box that can withstand 266°F is extraneous.
PHYSICAL PROPERTIES
SUNLIGHT RESISTANCE (UV) & WEATHERING
The performance of an enclosure during its service life
will be impacted by environmental conditions. Selecting
the correct material for the application will ensure a long
trouble-free installation. Adverse conditions such as
continuous direct exposure to sunlight, extreme
temperatures and aggressive elements like wind-blown
sand will have an impact on the enclosure. Steel
enclosures are prone to corrosion when exposed to
moisture and chemical atmospheres, the unprotected
finish surfaces of Fiberglass enclosures can be adversely
affected by direct exposure to sunlight (a condition
known as fiberbloom).
Declared Operating Temperatures
of Non-metallic Enclosures
JBX
ABS
Polycarbonate ‘A’
Polycarbonate ‘B’
Polyester ‘A’
Polyester ‘B’
Fiberglass ‘A’
Fiberglass ‘B’
PVC provides an excellent balance between material
strength and environmental performance. The surface
appearance of Scepter JBoxes are not adversely affected
by exposure to UV, can withstand years of weather
exposure and are particularly well suited for marine
areas and salt water spray.
-40ºF
0ºF
-40ºF
-31ºF
-40ºF
-40ºF
-40ºF
-31ºF
to
to
to
to
to
to
to
to
122ºF
125ºF
185ºF
180ºF
266ºF
248ºF
250ºF
266ºF
(-40ºC
(-18ºC
(-40ºC
(-35ºC
(-40ºC
(-40ºC
(-40ºC
(-35ºC
to
to
to
to
to
to
to
to
50ºC)
52ºC)
85ºC)
82ºC)
130ºC)
120ºC)
120ºC)
130ºC)
ENCLOSURE TEMPERATURE RISE
The difference between the air temperature inside the
enclosure resulting from heat generated by components
installed within and the air temperature outside the
enclosure is the temperature rise.
MAXIMUM TEMPERATURE RANGE
Scepter JBoxes are acceptable for use in ambient
temperatures as permitted by the NEC. The NEC limits
the use of PVC in ambient temperatures to 122ºF (50°C):
The maximum permissible continuous use temperature for
the Scepter JBox is 122ºF as limited by the NEC.
It is common for enclosures to be unventilated to provide
maximum protection for the internal components from
environment effects and allow internal heat to be
transferred by conduction through the walls of the
enclosure. Metallic enclosures will dissipate heat better
than non-metallic products; however, they also absorb
heat whereas non-metallic enclosures have an insulating
effect. Unpainted metallic enclosures directly exposed to
the sun often become too hot to touch. Painted metallic
enclosures and non-metallic enclosures have similar heat
transfer characteristics.
Enclosures/boxes are designed to provide protection
and enclose electrical/electronic controls, instruments,
components and wiring for indoor and outdoor
applications. Ambient temperature may pose a concern
Temperature rise may be important as increased heat
can reduce the life of electrical and electronic
components and the temperature within the enclosure
may impact the operating parameters (i.e. AMR or
NEC 352.12 Uses Not Permitted
(D) Ambient Temperatures. Where subject to ambient
temperatures in excess of 122ºF (50ºC) unless
otherwise listed.
RECOMMENDED OPERATING TEMPERATURE
8
TM
Absolute Maximum Rating) of the installed components.
As an example, most manufacturers' variable speed
drives are designed for full load continuous operation at
104ºF (40ºC) maximum ambient, operating above the
rated temperature reduces the life.
The calculation and graph is an estimation of
temperature rise. Internal component layout, external air
movement and other factors can create variations in the
actual temperature rise. If in doubt, we recommend
applying a safety factor of 25%.
To appreciate the temperature rise and whether or not it
is a concern for a specific application the following
information is provided as a guide. To determine the heat
rise, the enclosure surface area and the total internal
heat load are required.
There are options to address an unfavorable temperature
rise and its effect on equipment:
Sealed Enclosure Temperature Rise
Temperature Rise Above
Ambient (ºF)
60º
The table provides the total surface area exposed at air
for specific Scepter JBox sizes and assumes the box is
surface mounted against a wall/surface – the back wall
of the box is not included in the surface area calculation.
JBX box
Total Surface Area (sq ft)
5 sides
JBX884
2
JBX887
2.3
JBX12124
3.6
JBX12126
3.9
JBX12128
4.25
40º
20º
0º
0
2
4
6
8
10
12
14
16
Input Power (Watts/Square Foot)
1. Increasing the enclosure box size will result in a lower
temperature rise
The heat load is the total watts generated by the
components within the enclosure.
2. Add venting, a fan or other air cooling options (note:
this can impact the rating of the enclosure)
Temperature Rise (watts/ft²) = total input watts / total
surface area in square feet
3. Heat rises; position equipment within the box
accordingly. Equipment that can handle higher heat
should be situated at the top.
Example: A JBX12126 box has a total internal heat
load of 30 watts. The calculation is total watts / surface
area (30/3.90) or 7.7 watts/ ft²; using the graph, the
estimated temperature rise is approximately 35ºF.
Note: This information is a guideline only and provided
to assist the user in determining the suitability of the
product for the application.
Scepter JBoxes can be used in ambient temperature of
122ºF (50ºC) maximum. The maximum heat rise
tolerated in an enclosed, gasketed and sealed enclosure
with no venting would be dependent upon the rating of
the components installed and the size of the enclosure.
9
THE NEXT GENERATION JUNCTION BOX
FLAME RESISTANCE
CHEMICAL RESISTANCE
The Scepter JBox is manufactured of a specific PVC
formulation and the material has been evaluated by UL
for flammability in accordance with UL 94. The flame
classification is 94V-0.
Environmental resistance ratings are based upon tests
where the material specimens were subjected to
complete immersion in the reagent. This is severe and is
not typical of actual installation use. Where there is a
question of suitability for the enclosure in a specific
environment, physical product samples should be tested
under actual conditions. Any information provided on
chemical resistance is intended as a guideline only,
actual testing in the application environment is always
recommended.
IMPACT RESISTANCE
The Scepter JBox has been designed and manufactured
to exceed the impact testing requirements of the product
standard. Steel ball impact tests were conducted at
ambient room temperature and at -31ºF (-35ºC). The
Scepter JBox meets the same impact testing requirements
as all non-metallic enclosures (fiberglass, polycarbonate
etc.) listed to UL50/50E.
EMI / RFI SHIELDING
Electromagnetic Interference and Radio Frequency
Interference Shielding is not a standard physical feature
of non-metallic boxes/enclosures. For non-metallic
products a special coating must be applied to provide
shielding protection. This customization option is not
provided by IPEX on the Scepter JBox however shielding
products are commercially available for the
user/installer to apply a spray-on or painted shielding.
RELATIVE THERMAL INDEX
This PVC material used in the manufacture of the Scepter
JBox has been evaluated for Relative Thermal Index (RTI)
ratings as noted below.
Mechanical
Electrical
200 (95)
w/o Impact
185 (85)
200 (95)
The ability for an enclosure to perform in specific
environments is affected by the various materials that
comprise the functional elements of the enclosure. To
ensure the long term performance of the enclosure, the
hardware and components must also be suitable for use
in the environment.
Scepter JBoxes are well suited for most environments and
offer very good chemical resistance to dilute acids, dilute
alkalis, oils and greases, alcohols.
The proprietary gasket has been formulated to provide
low temperature flexibility, tear resistance and tensile
strength to provide performance in a wide range of
environmental conditions. Similar to our PVC boxes the
gasket offers good chemical resistance to dilute acids,
dilute alkalis, oils, alcohols and water.
Relative Thermal Index, ºF (ºC)
w/Impact
The user must determine the suitability of the product in
an environment based upon individual characteristics. In
many applications, several corrosive agents are present
and reactions among them are not always documented.
Application environments can be unique necessitating
the identification of all possible corrosive elements that
may affect the intended enclosure application.
10
TM
ENCLOSURE RATINGS
NEMA RATINGS
Many applications require the use of a box that has an
environmental rating. Enclosures rated to NEMA
standards are identified with a marking to define the
ability of that enclosure to withstand the specific
environmental conditions. The different NEMA ratings
that the Scepter JBox is certified to and the conditions
are described below.
Type
Description
1
Enclosures for indoor use providing protection from contact with the enclosed equipment and ingress of solid objects
(falling dirt).
2
Enclosures for indoor use providing protection from contact with the enclosed equipment, ingress of solid objects
(falling dirt) and from harmful effects on equipment due to ingress of water (dripping and light splashing)
3R
Enclosures for indoor or outdoor use providing protection from contact with the enclosed equipment, ingress of solid
objects (falling dirt) and from harmful effects on equipment due to ingress of water (rain, sleet, snow) and is
undamaged by the external formation of ice.
4
Enclosures for indoor or outdoor use providing protection from contact with the enclosed equipment, ingress of solid
objects (falling dirt and windblown dust) and from harmful effects on equipment due to ingress of water (rain, sleet,
snow, splashing water and hose directed water) and is undamaged by the external formation of ice.
4X
Enclosures for indoor or outdoor use providing protection from contact with the enclosed equipment, ingress of solid
objects (windblown dust) and from harmful effects on equipment due to ingress of water (rain, sleet, snow, splashing
water and hose directed water), protection against corrosion and is undamaged by the external formation of ice.
6
Enclosures for indoor or outdoor use providing protection from contact with the enclosed equipment, ingress of solid
objects (falling dirt) and from harmful effects on equipment due to ingress of water (hose directed water and entry of
water on occasional temporary submersion at a limited depth) and is undamaged by the external formation of ice.
6P
Enclosures for indoor or outdoor use providing protection from contact with the enclosed equipment, ingress of solid
objects (falling dirt) and from harmful effects on equipment due to ingress of water (hose directed water and entry of
water during prolonged submersion at a limited depth) and is undamaged by the external formation of ice.
12
Enclosures for indoor use providing protection from contact with the enclosed equipment, ingress of solid objects
(falling dirt circulating dust, lint, fibers and flyings) and from harmful effects on equipment due to ingress of water
(dripping and light splashing).
13
Enclosures for indoor use providing protection from contact with the enclosed equipment, ingress of solid objects
(falling dirt circulating dust, lint, fibers and flyings) and from harmful effects on equipment due to ingress of water
(dripping and light splashing) and against the spraying, splashing and seepage of oil and non-corrosive coolants.
11
THE NEXT GENERATION JUNCTION BOX
Enclosure constructed for:
1
2
3
3R
4
4X
6
6P
12
13
Indoor use
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Outdoor use
Enclosure provides degree of protection against:
Contact with enclosed equipment
X
X
X
X
X
X
X
X
X
X
Ingress of solid objects (falling dirt)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Ingress of water (dripping and light splashing)
Ingress of water (rain, sleet, snow)
Ingress of water (rain, sleet, snow, splashing water and
hose directed water)
Ingress of water (hose directed water and occasional
temporary submersion at a limited depth)
Ingress of water (hose directed water and occasional
prolonged submersion at a limited depth)
X
Oil and coolant seepage
Oil and coolant spraying and splashing
X
NEC 2014 Table 110.28 defines enclosure types
for selecting appropriate enclosures for use in
specific applications.
12
TM
IP RATINGS
Scepter JBoxes are not IP rated.
NEMA Enclosure
Type Number
IEC Enclosure
Classification Designation
1
IP10
define the degree of protection the enclosure provides
2
IP11
against solid foreign bodies and liquids (water), but
3, 3R
IP54
they are not equivalent. The IEC rating does not
4, 4X
IP55/IP56
6, 6P
IP67
12
IP52
13
IP54
IP designations are similar to NEMA ratings, they
include requirements and testing for corrosion, gasket
aging, dust or external icing.
The designation consists of the letters IP followed by two
numerals. The first numeral indicates the degree of
protection provided with respect to foreign objects
The chart is an approximate comparison between NEMA
entering the enclosure (i.e. hand, finger, tool, dust). The
and IP enclosure ratings
second numeral indicates the degree of protection
provided with respect to ingress of water (i.e. splashing,
rain, direct hose spray, immersion).
.
13
THE NEXT GENERATION JUNCTION BOX
INSTALLATION
MOUNTING
CONDUIT CONNECTIONS
The Scepter JBox is designed to be secured in place
To maintain the desired enclosure rating (i.e. NEMA 3R)
using integral mounting feet that are external to the box
the conduit connection must provide the same
compartment. The mounting feet, located at the corners,
environmental resistance. Solvent cemented PVC conduit
are contained within the ‘footprint’ of the box allowing
and fittings provide excellent results for use in
for close (side-by-side) mounting to other boxes or
demanding wet location, wash-down and water spray
equipment, walls or structural components without
environments. Properly installed PVC fittings provide the
conflict. The mounting holes 1/4" (6mm) diameter
best conduit connection method to the Scepter JBox.
(JBX442-JBX634) and 9/32" (7mm) (JBX664-JBX887)
PVC conduit hub:
allow for screws, bolts and other fasteners to be used to
1. Mechanical connection: PVC Male/Terminal Adapter
secure the box.
(TA) w/locknut and O-ring
External mounting ensures the boxes are compliant with
NEC 314.43. It is the installer’s responsibility to correctly
secure the Scepter JBox for the application especially if
2. Solvent Cement connection: PVC Junction Box
Adapter (JBA) and coupling
the box will be supporting additional weight inside (i.e.
Threaded connection:
devices on a Din Rail or Back Panel). The selection of
1. Myers Hub, Bullet Hub or similar
fasteners for mounting is dependent upon the surface
CUSTOM CUTTING
and material on to which the Scepter JBox is being
IPEX does not provide custom hole or profile cutting
secured.
modification services. Our boxes are manufactured of
POLE MOUNTING
PVC and have a standard wall thickness of 3/16"
IPEX has developed a unique universal pole mount
(4.8mm) (JBX442 – JBX887) and 1/4" (6.35mm)
bracket for the attachment of Scepter JBox series to poles
(JBX12124-JBX12128). Custom holes can easily be
and posts. The PMK-412 kit is designed to accommodate
made on site as needed or pre-fabricated in the shop
sizes from 4" to 12" and fit with a round, octagonal or
using a standard hole-saw or Unibit step drill.
square pole/post up to 15" diameter. Instructions are
DRILLING AND CUTTING
provided with each kit to adjust the bracket correctly for
PVC is the easiest of all box materials to cut and drill
the specific size of box and stainless steel gear clamps
allowing installers to use standard drills, hole-saws, step
tighten around the pole using a nut driver to provide a
drills and punches to create conduit entries and holes for
secure hold. Those customers who have a banding tool
mounting control devices. There are no health or safety
(i.e. Band-It brand) can use the brackets included in the
concerns resulting from fibers, fine dust or metal shavings.
kits with the Band-It supplied bands.
A helpful feature of the Scepter JBox design is the ability
The PMK4-12 pole mount kit was designed to support a
for the box to lay flat on all sides which will position the
weight of up to 40lbs. Additional support should be
provided where the installation of a box using the PMK412 exceeds 40 lbs.
14
box flat and level for the user when drilling/cutting
holes. Other products have flanges/mounting feet that
TM
extend from the box preventing the box from being
GRID LINES
positioned flat and the user must drill and/or cut on an
All sizes of Scepter JBoxes have embossed grid lines on
angle.
the side walls of the box. These grid lines are designed
to be visible when working with the box but discreet
when viewed at a distance. The grid lines are a time
saving feature for the installer connecting conduit
raceways, cables and other fittings to the box. The grid
lines offer a quick visual reference for locating the hole
cutting location for a connection point. Rather than
measuring and duplicating the measurement on the
opposite or adjacent wall to create a parallel or
perpendicular conduit run, the grid lines are there for the
quick reference. Additionally, the outermost grid line
defines the ‘drill zone’ – identifying the outermost point
CUSTOM COLORS
IPEX does not offer custom colors. Scepter JBox series
boxes are standard PVC grey to match PVC conduit
at which a hole can be cut and still permit a connector to
be properly fastened in place (i.e. the locknut will fit on
the inside without interference).
and fittings.
PAINTING RECOMMENDATIONS
PVC weathers extremely well and does not require
special protection from UV. We do not recommend
painting of PVC boxes; however paint products
formulated for adhesion to PVC are commercially
available at paint retailers.
DRAINAGE HOLES
UL50 9.7.2 specifies Types 2 and 3R enclosures are
constructed in accordance with 7.3.3.3 shall have
instructions indicating the method of (obtaining)
providing drainage openings when the enclosure is
being used for Types 2 and 3R applications. This
information is included on every Scepter JBox - engraved
into the bottom inside of the box.
Note: For Type 2 and 3R: Drill a 3/16” (5mm) drainage
hole at the lowest point of the enclosure.
15
THE NEXT GENERATION JUNCTION BOX
BACK PANEL AND DIN RAIL MOUNTING
SECURITY AND RESTRICTING ACCESS
Scepter JBoxes, sizes 8" and larger, are supplied with
Scepter JBoxes feature patented ‘hand close/tool open’
standoffs on the inside base for the mounting of back
quarter turn fasteners. The fasteners are designed to
panels. The spacing of the mounting bosses are noted on
require a tool (#2 Phillips head screwdriver) to be used
dimensional drawings but have been based on standard
to open the fastener and access the box maintaining a
industry back panels. IPEX offers 14 gauge powder
standard degree of security access. All boxes (6x6 size
coated carbon steel back panels. Panel mounting screws
and larger) have a provision for locking the cover by
are not supplied with the back panels; the correct screw
using the padlock security hole. The holes are located on
to use for mounting a panel into the Scepter JBox is a Pan
opposite walls at the mid-point on the flanged walls (the
Head #10 x 1/2" length thread forming screw.
side with the mounting feet supports). The (.28" or 7mm)
hole is designed to accommodate a pad-lock, tie-wrap or
Back Panel Cross Reference
IPEX
bolt (regular or tamper-resistant) to restrict unwanted
BP88CSW
BP1212CSW
8.75 x 6.88
10.88 x 10.75
A10P8
n/a
Hammond
14R0907
14R1111
Stahlin
BP108CS
n/a
LMPL108CS
n/a
Panel Dimension
Hoffman
Rittal
access to the box.
Din Rail Mounting
In addition to offering mounting provisions for a back
plate panel, all boxes 8" and larger have raised bosses
for the attachment of DIN rail. Screws are not included
for mounting of DIN rail, the correct screw to use for
mounting a DIN rail into the Scepter JBox is a Pan Head
#10 x 1/2" length thread forming screw.
16
TM
GROUNDING AND BONDING
Bonding of Electrical Equipment:
Equipment system grounding and bonding are separate
Normally non-current-carrying conductive materials
things.
enclosing electrical conductors or equipment, or forming
Grounding protects equipment from damage due to
induced voltages. Induced voltages (i.e. lightning) are
trying to get to earth and thus ground wire connected to
part of such equipment, shall be connected together and
to the electrical supply source in a manner that
establishes an effective ground-fault current path.
ground rods and plates. The equipment grounding
The earth shall not be considered an effective ground-
conductor and ground rod connection does not protect
fault current path.
the ground fault current path.
NEC 2014
Bonding refers to the low impedance conductive path
314.3 Non-metallic Boxes. Non-metallic boxes shall
that carries a fault current from the point of a ground
be permitted only with open wiring on insulators,
fault to the supply source. This low impendence path for
concealed knob-and-tube wiring, cabled wiring
ground-fault current facilitates the operation of the circuit
methods with entirely non-metallic sheaths, flexible
overcurrent device (i.e. breaker). A fault current through
cords and non-metallic raceways.
ground (earth) may not create the necessary current as
Exception No. 1: Where internal bonding means are
the earth is not a low impedance fault current path.
provided between all entries, non-metallic boxes shall
The National Electrical Code (NEC) states:
be permitted to be used with metal raceways or
Electrical System Grounding:
metal-armored cables.
Electrical systems that are grounded shall be connected
to earth in a manner that will limit the voltage imposed
by lightning, line surges, or unintentional contact with
higher-voltage lines and that will stabilize the voltage to
earth during normal operation.
Non-metallic conduits connected non-metallic boxes and
enclosures do not require bonding. In instances where
metallic conduits are connected to a non-metallic box it is
the installing electrician’s responsibility to properly bond
the conductive materials to ensure an effective ground-
Effective Ground-Fault Current Path:
fault path. This is accomplished by using grounding
An intentionally constructed, low impendence electrically
bushings (or hubs) and the connection of a bonding
conductive path designed and intended to carry current
jumper between all metal raceway and cable entries in
under ground-fault conditions from the point of a ground
compliance with the code rules.
fault on a wiring system to the electrical supply source
and that facilitates the operation of the overcurrent
protective device.
Grounding of Electrical Equipment:
Normally non-current-carrying conductive materials
enclosing electrical conductors or equipment, or forming
part of such equipment, shall be connected to earth so as
to limit the voltage to ground on these materials.
17
THE NEXT GENERATION JUNCTION BOX
DIN Rail ground
DIN rails are normally required to be grounded and a
grounding terminal block is readily available from all of
the terminal manufacturers. The grounding terminal block
has a recessed center screw that engages the DIN rail
and the other terminal connection points allow for
ground wire attachment.
Back panel ground
Most Back Panels have 4 mounting holes that align with
the mounting bosses in the bottom of the box and an
additional 5th hole set to the inside of one corner for the
attachment of a ground lug or bolt. The ground can be
located anywhere on the panel by drilling another
mounting hole where desired.
To get the full picture
go to
scepterinnovation.com
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18
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About the IPEX Group of Companies
As leading suppliers of thermoplastic piping systems, the IPEX
Group of Companies provides our customers with some of the
largest and most comprehensive product lines. All IPEX products
are backed by more than 50 years of experience. With state-of-theart manufacturing facilities and distribution centers across North
America, we have established a reputation for product innovation,
quality, end-user focus and performance.
Markets served by IPEX group products are:
• Electrical systems
• Telecommunications and utility piping systems
• PVC, CPVC, PP, PVCO, ABS, PEX, FR-PVDF, NFRPP, FRPP,
HDPE, PVDF and PE pipe and fittings (½” – 48”)
• Industrial process piping systems
• Municipal pressure and gravity piping systems
• Plumbing and mechanical piping systems
• PE Electrofusion systems for gas and water
• Industrial, plumbing and electrical cements
• Irrigation systems
Products are manufactured by IPEX Electrical Inc. and distributed in the United
States by IPEX USA LLC.
JBoxTM is a trademark of IPEX Branding Inc.
This literature is published in good faith and is believed to be
reliable. However it does not represent and/or warrant in any
manner the information and suggestions contained in this
brochure. Data presented is the result of laboratory tests and field
experience.
A policy of ongoing product improvement is maintained. This may
result in modifications of features and/or specifications without
notice.
DISTRIBUTED BY
CTELJBIP150102U © 2015 IPEX EL0043U
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